EP0049034A2 - Hydraulisches Folgeschaltventil - Google Patents

Hydraulisches Folgeschaltventil Download PDF

Info

Publication number: EP0049034A2
Authority: EP; European Patent Office
Prior art keywords: valve; spool; chamber; port; fluid
Prior art date: 1980-09-30
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.): Granted

Application number

EP81303364A

Other languages

English (en)

French (fr)

Other versions

EP0049034B1 (de

EP0049034A3 (en

Inventor

Constantine Kosarzecki

Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)

Modular Controls Corp

Original Assignee

Modular Controls Corp

Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)

1980-09-30

Filing date

1981-07-23

Publication date

1982-04-07

1981-07-23 Application filed by Modular Controls Corp filed Critical Modular Controls Corp

1982-04-07 Publication of EP0049034A2 publication Critical patent/EP0049034A2/de

1983-02-16 Publication of EP0049034A3 publication Critical patent/EP0049034A3/en

1985-03-20 Application granted granted Critical

1985-03-20 Publication of EP0049034B1 publication Critical patent/EP0049034B1/de

Status Expired legal-status Critical Current

Links

238000012163 sequencing technique Methods 0.000 title claims abstract description 35
239000012530 fluid Substances 0.000 claims abstract description 80
238000005192 partition Methods 0.000 claims description 11
238000012986 modification Methods 0.000 description 2
230000004048 modification Effects 0.000 description 2
230000007935 neutral effect Effects 0.000 description 2
125000004122 cyclic group Chemical group 0.000 description 1
238000010586 diagram Methods 0.000 description 1
239000000463 material Substances 0.000 description 1
239000007769 metal material Substances 0.000 description 1
238000005096 rolling process Methods 0.000 description 1
239000007787 solid Substances 0.000 description 1

Images

Classifications

- A—HUMAN NECESSITIES
- A01—AGRICULTURE; FORESTRY; ANIMAL HUSBANDRY; HUNTING; TRAPPING; FISHING
- A01B—SOIL WORKING IN AGRICULTURE OR FORESTRY; PARTS, DETAILS, OR ACCESSORIES OF AGRICULTURAL MACHINES OR IMPLEMENTS, IN GENERAL
- A01B3/00—Ploughs with fixed plough-shares
- A01B3/36—Ploughs mounted on tractors
- A01B3/40—Alternating ploughs
- A01B3/42—Turn-wrest ploughs
- A01B3/421—Turn-wrest ploughs with a headstock frame made in one piece

Definitions

the invention provides an improved hydraulic sequencing valve including a valve body defining first and second line ports, a pump port, a tank port, and an internal bore.
a hollow valve spool is disposed within the internal bore and includes a partition intermediate its ends dividing the spool into first and second chambers. An orifice within the partition provides fluid communication between the chambers'.
the spool is movable within the internal bore between first and second positions and defines with the valve body first fluid flow paths from the pump port to the first line port and from the second line port to the tank port when in the first position, and second fluid flow paths from the pump port to the second line and from the first line port to the tank port when in the second position.
the spool first chamber is in continuous fluid communication with the pump port.

Landscapes

Life Sciences & Earth Sciences (AREA)
Engineering & Computer Science (AREA)
Mechanical Engineering (AREA)
Soil Sciences (AREA)
Environmental Sciences (AREA)
Fluid-Pressure Circuits (AREA)
Safety Valves (AREA)
Servomotors (AREA)
Multiple-Way Valves (AREA)

EP81303364A 1980-09-30 1981-07-23 Hydraulisches Folgeschaltventil Expired EP0049034B1 (de)

Applications Claiming Priority (2)

Application Number	Priority Date	Filing Date	Title
US06/192,642 US4341148A (en)	1980-09-30	1980-09-30	Hydraulic sequencing valve
US192642		1998-11-16

Publications (3)

Publication Number	Publication Date
EP0049034A2 true EP0049034A2 (de)	1982-04-07
EP0049034A3 EP0049034A3 (en)	1983-02-16
EP0049034B1 EP0049034B1 (de)	1985-03-20

Family

ID=22710475

Family Applications (1)

Application Number	Title	Priority Date	Filing Date
EP81303364A Expired EP0049034B1 (de)	1980-09-30	1981-07-23	Hydraulisches Folgeschaltventil

Country Status (5)

Country	Link
US (1)	US4341148A (de)
EP (1)	EP0049034B1 (de)
JP (1)	JPS5761803A (de)
CA (1)	CA1150138A (de)
DE (1)	DE3169376D1 (de)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number	Priority date	Publication date	Assignee	Title
FR2562965A1 (fr) *	1984-04-12	1985-10-18	Bryne Mek Verksted As	Soupape d'inversion, pour commander notamment un verin hydraulique
EP2238818A1 (de) *	2009-04-08	2010-10-13	Kuhn-Huard S.A.	Aufsatteldrehpflug mit einer Einrichtung zur Reduzierung des Drucks
ITMO20110175A1 (it) *	2011-07-19	2013-01-20	Atlantic Fluid Tech S R L	Valvola di sostentamento carico

Families Citing this family (6)

* Cited by examiner, † Cited by third party
Publication number	Priority date	Publication date	Assignee	Title
US4488476A (en) *	1982-10-27	1984-12-18	The Cessna Aircraft Company	Marker control valve
NO153516C (no) *	1984-01-18	1986-04-09	Kverneland As	Vende- og innstillingsmekanisme.
GB2264216B (en) *	1992-02-15	1995-06-21	Kverneland Klepp As	Multi-share plough
FR2765924B1 (fr) *	1997-07-10	2002-02-01	Kuhn Huard Sa	Dispositif permettant de commander deux verins
US9995319B2 (en)	2015-09-30	2018-06-12	Deere & Company	Hydraulic alternating system for agricultural baler
US10918020B2 (en)	2015-09-30	2021-02-16	Deere & Company	Baler and accumulator control system

Family Cites Families (18)

* Cited by examiner, † Cited by third party
Publication number	Priority date	Publication date	Assignee	Title
US2927558A (en) *	1956-01-16	1960-03-08	American Brake Shoe Co	Hydraulic press and control means
FR1363918A (fr) *	1963-03-04	1964-06-19	Renault	Dispositif hydraulique de relevage d'outil et de contrôle d'effort pour tracteurs agricoles
US3235010A (en) *	1964-01-30	1966-02-15	Case Co J I	Load depth control valve
US3423935A (en) *	1966-12-30	1969-01-28	Weatherhead Co	Hydraulic control system for tractor drawn implement
JPS4419056Y1 (de) *	1967-02-02	1969-08-16
FR2050593A5 (de) *	1969-06-18	1971-04-02	Poclain Sa
US3665810A (en) *	1970-01-14	1972-05-30	Koehring Co	Differential pressure holding valve
US3799032A (en) *	1972-01-17	1974-03-26	Omark Industries Inc	Safety holding valve rod eye assembly
FR2187086A5 (de) *	1972-05-31	1974-01-11	Poclain Sa
US3955478A (en) *	1973-10-29	1976-05-11	Dresser Industries, Inc.	Hydraulically powered percussion drill
JPS5115223U (de) *	1974-07-23	1976-02-04
DE2506923C3 (de) *	1975-02-19	1983-01-27	Heilmeier & Weinlein Fabrik für Oel-Hydraulik GmbH & Co KG, 8000 München	Ventilvorrichtung
FR2318455A1 (fr) *	1975-07-15	1977-02-11	Poclain Sa	Dispositif de regulation asservie d'un debit
US4008875A (en) *	1976-01-02	1977-02-22	Cascade Corporation	Sequence valve for clamping apparatus
US4206685A (en) *	1976-01-17	1980-06-10	Erwin Hengstler Fabrik Hydraulischer Hebezeuge	Hydraulic turning device for a turn plow
US4207951A (en) *	1977-05-23	1980-06-17	Peek Steven L	Two-way, multiple bottom plow with lift assist
US4145958A (en) *	1977-12-02	1979-03-27	Borg-Warner Corporation	Fluid control system with automatically actuated motor port lock-out valves
US4300584A (en) *	1978-02-10	1981-11-17	Modular Controls Corporation	Hydraulic sequence valve

1980
- 1980-09-30 US US06/192,642 patent/US4341148A/en not_active Expired - Lifetime
1981
- 1981-07-20 CA CA000382068A patent/CA1150138A/en not_active Expired
- 1981-07-23 EP EP81303364A patent/EP0049034B1/de not_active Expired
- 1981-07-23 DE DE8181303364T patent/DE3169376D1/de not_active Expired
- 1981-08-07 JP JP56124639A patent/JPS5761803A/ja active Granted

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number	Priority date	Publication date	Assignee	Title
FR2562965A1 (fr) *	1984-04-12	1985-10-18	Bryne Mek Verksted As	Soupape d'inversion, pour commander notamment un verin hydraulique
EP2238818A1 (de) *	2009-04-08	2010-10-13	Kuhn-Huard S.A.	Aufsatteldrehpflug mit einer Einrichtung zur Reduzierung des Drucks
FR2944180A1 (fr) *	2009-04-08	2010-10-15	Kuhn Huard Sa	Charrue reversible avec dispositif de reduction de pression
ITMO20110175A1 (it) *	2011-07-19	2013-01-20	Atlantic Fluid Tech S R L	Valvola di sostentamento carico
EP2549124A3 (de) *	2011-07-19	2013-03-06	Atlantic Fluid Tech S.r.l.	Lastventil

Also Published As

Publication number	Publication date
JPH0138965B2 (de)	1989-08-17
DE3169376D1 (en)	1985-04-25
CA1150138A (en)	1983-07-19
JPS5761803A (en)	1982-04-14
EP0049034B1 (de)	1985-03-20
US4341148A (en)	1982-07-27
EP0049034A3 (en)	1983-02-16

Legal Events

Date	Code	Title	Description
1982-02-06	PUAI	Public reference made under article 153(3) epc to a published international application that has entered the european phase	Free format text: ORIGINAL CODE: 0009012
1982-04-07	AK	Designated contracting states	Designated state(s): DE FR GB IT SE
1982-12-15	17P	Request for examination filed	Effective date: 19821006
1982-12-17	PUAL	Search report despatched	Free format text: ORIGINAL CODE: 0009013
1983-02-16	AK	Designated contracting states	Designated state(s): DE FR GB IT SE
1984-12-03	ITF	It: translation for a ep patent filed
1985-01-19	GRAA	(expected) grant	Free format text: ORIGINAL CODE: 0009210
1985-03-20	AK	Designated contracting states	Designated state(s): DE FR GB IT SE
1985-04-25	REF	Corresponds to:	Ref document number: 3169376 Country of ref document: DE Date of ref document: 19850425
1985-05-10	ET	Fr: translation filed
1986-01-20	PLBE	No opposition filed within time limit	Free format text: ORIGINAL CODE: 0009261
1986-01-20	STAA	Information on the status of an ep patent application or granted ep patent	Free format text: STATUS: NO OPPOSITION FILED WITHIN TIME LIMIT
1986-03-12	26N	No opposition filed
1990-07-31	ITTA	It: last paid annual fee
1993-06-10	PGFP	Annual fee paid to national office [announced via postgrant information from national office to epo]	Ref country code: FR Payment date: 19930610 Year of fee payment: 13
1993-06-18	PGFP	Annual fee paid to national office [announced via postgrant information from national office to epo]	Ref country code: DE Payment date: 19930618 Year of fee payment: 13
1993-06-21	PGFP	Annual fee paid to national office [announced via postgrant information from national office to epo]	Ref country code: SE Payment date: 19930621 Year of fee payment: 13
1993-06-24	PGFP	Annual fee paid to national office [announced via postgrant information from national office to epo]	Ref country code: GB Payment date: 19930624 Year of fee payment: 13
1994-07-23	PG25	Lapsed in a contracting state [announced via postgrant information from national office to epo]	Ref country code: GB Effective date: 19940723
1994-07-24	PG25	Lapsed in a contracting state [announced via postgrant information from national office to epo]	Ref country code: SE Effective date: 19940724
1995-01-31	EUG	Se: european patent has lapsed	Ref document number: 81303364.4 Effective date: 19950210
1995-03-22	GBPC	Gb: european patent ceased through non-payment of renewal fee	Effective date: 19940723
1995-03-31	PG25	Lapsed in a contracting state [announced via postgrant information from national office to epo]	Ref country code: FR Effective date: 19950331
1995-04-01	PG25	Lapsed in a contracting state [announced via postgrant information from national office to epo]	Ref country code: DE Effective date: 19950401
1995-04-03	EUG	Se: european patent has lapsed	Ref document number: 81303364.4
1995-05-24	REG	Reference to a national code	Ref country code: FR Ref legal event code: ST

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EP0049034B1 (de)	1985-03-20	Hydraulisches Folgeschaltventil
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